While gearing up for a shock change for a friend, I googled this link to a home-made brew from 50/50 mix of Automatic Transmission Fluid & Acetone. Anyone ever tried this? I'm going to give it a shot in a few days.
I have used nail varnish remover(acetone) before for cleaning up particular hard to shift materials. But I have no idea what 'penetrating' action it may have.
Seeing as WD40 and GT85 are made up of mostly petroleum distallates, this mixture you speak of seems kind of strange, I can imagine it does clean and lube relatively well bus as a penetrating fluid I'm not sure.
Plus the fact Acetone swells and eats into rubber parts quite aggressively. Transmission fluid is generally safe to use on rubber though.
Gt85 is absolutely excellent, penetrates, cleans, lubes, coats, protects, fine with rubber parts, and leaves a Teflon PTFE coating behind. Can be picked up for £2 a can too if bought in multi packs.
